(19)
(11) EP 0 821 978 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
02.09.1998 Bulletin 1998/36

(43) Date of publication A2:
04.02.1998 Bulletin 1998/06

(21) Application number: 97305745.8

(22) Date of filing: 30.07.1997
(51) International Patent Classification (IPC)6: A61M 16/00, A61M 25/02
(84) Designated Contracting States:
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 30.07.1996 US 688438

(71) Applicant: Hart-Ellereth Medical Inc.
Palatine, Illinois 60067 (US)

(72) Inventor:
  • Ellereth, David
    Illinois 60014 (US)

(74) Representative: Cardwell, Stuart Martin et al
Roystons Tower Building Water Street
Liverpool, L3 1BA
Liverpool, L3 1BA (GB)

   


(54) Light weight positive air pressure breathing apparatus


(57) Apparatus for generating positive pressure breathing air for patients suffering from obstructive sleep apnea including a nasal assembly comprising plural tube segments each fitted with a nostril engagement member to engage the interior walls and lower edge tissue of the nostril thereby providing both an air-tight seal as well as retention of the apparatus to the patient's nose. No other head retention gear or straps are required. A stress-relieving assembly is provided to interconnect one or more tubes from the nasal assembly to the source of pressurized air. A family of nostril engagement members may be provided to achieve a proper nostril fit. The engagement members may be angled to conform with ordinary nostril divergence.






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